Giải phương trình lượng giác sau:    $\sqrt{2}(\sin x+\cos x)=\tan x+\cot x $

http://toan.hoctainha.vn/Thu-Vien/Bai-Tap/109492/bai-109492

Bạn có thể vào thư viện tự học thêm,cách tìm kiếm lời giải đã nói rất chi tiết trong Video
Cảm ơn bạn nhé.Mình sẽ xem clip hướng dẫn –  hatcattrongdoi 09-10-12 05:26 PM

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